916780611 has 8 divisors (see below), whose sum is σ = 1222896640. Its totient is φ = 610925832.

The previous prime is 916780603. The next prime is 916780679. The reversal of 916780611 is 116087619.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 916780611 - 2³ = 916780603 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 916780611.

It is not an unprimeable number, because it can be changed into a prime (916780681) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56971 + ... + 71268.

It is an arithmetic number, because the mean of its divisors is an integer number (152862080).

Almost surely, 2^916780611 is an apocalyptic number.

916780611 is a deficient number, since it is larger than the sum of its proper divisors (306116029).

916780611 is a wasteful number, since it uses less digits than its factorization.

916780611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130625.

The product of its (nonzero) digits is 18144, while the sum is 39.

The square root of 916780611 is about 30278.3852112361. The cubic root of 916780611 is about 971.4530286858.

The spelling of 916780611 in words is "nine hundred sixteen million, seven hundred eighty thousand, six hundred eleven".